Divine simplicity is a concept in theology that refers to the idea of God's nature being free from any kind of complexity or composition. This term has various synonyms that include transcendent simplicity, absolute simplicity, pure simplicity, or perfect simplicity. These terms are used to describe the nature of God, which is believed to be indivisible and uncompounded. Divine simplicity is fundamental to many religious beliefs about God's nature, including the Christian, Jewish and Islamic faiths. The concept of divine simplicity helps to explain key aspects of religious belief such as God's eternal and unchanging nature, and his ability to be omnipotent, omniscient, and perfectly good.